Worst President of the 20th Century

I'm tied between Johnson and Carter, but ultimately I went with Carter.

I believe he is a good man, although that's not the point here. The Carter Presidency was a failure of vast proportions. The Man from Plains came perilously close to losing the Cold War and his reluctance to confront Soviet aggression or the sort of vile anti-Americanism that we fight today is as much a root cause of our present war as one is likely to find.

The domestic policy of Carter was just as awful. Energy policy? Wear a sweater. Want consumer confidence problems? Then have the President of the United States get on television and chat to the American people about a future of dwindling wealth and bleak prospects. Carter did not just mangle the economy, but he almost destroyed our will to create wealth. Interest rates were above 20%, and many people holding solid careers went bankrupt. Carter could have reached out to Republicans on tax simplification and reduction or on welfare and social security reform, and gained strong bipartisan support.

He lied on television, etc, but I don't think that alone is what makes him a bad president.
The failures and the flaws of Jimmy Carter as president are water under the bridge. What Jimmy Carter has chosen to do with all the residual goodwill from Democrats and Republicans like in his post-presidential years, however, is a grand disappointment to all good people and all serious citizens. Carter is also the dear who put social security into the general fund to balance his budget. Social Security has been going down hill ever since.

Jam it back in, in the dark.